Answer by seric for Detecting new new items in a RSS feed
I am using etags on my project, computed in a servlet filter as shown here http://www.infoq.com/articles/etagsThis would work for rss, atom or any other resource hosted on your webserver.
View ArticleAnswer by Guffa for Detecting new new items in a RSS feed
Each item in RSS 2 and Atom has a GUID/ID that may be flagged as unique. If it's flagged as unique you can use it to identify items and match against the previous items.
View ArticleAnswer by Zed for Detecting new new items in a RSS feed
Check the Last-Modified and ETag fields of the http response when requesting the field. Even better, use the If-Modified-Since and If-None-Match tags in your request, and you will only get a 304...
View ArticleDetecting new new items in a RSS feed
What is the best way to detect when a feed has been updated? Say I have an application which polls the feed every 15 minutes. How do I find out if new content has been added or not? For RSS as well as...
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